July grape heavy fertilizer
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September 07 11:47:32, 2025
In July, grapes enter the fruit enlargement stage and gradually begin to mature. The period one month before harvest is crucial for achieving high quality and yield. Proper management of fertilization and irrigation during this time is essential.
1. Timely fertilization ensures adequate nutrient supply. It is recommended to apply a top dressing during the early stages of fruit coloring, focusing on phosphorus and potassium. You can use a compound fertilizer like potassium sulfate, either through soil application or foliar spraying. When combining pest and disease control, you can also apply 0.5%-1% potassium dihydrogen phosphate solution 2-3 times to enhance leaf and fruit nutrition. Additionally, calcium-based fertilizers such as Tricor Calcium Treasure (diluted 1000-1200 times) can be sprayed continuously in the month before harvest. This helps increase the calcium content in grape berries, improving their quality, storage ability, and reducing the risk of cracking.
2. Effective water management is equally important. To maintain grape quality, it's necessary to strictly control irrigation in the month before harvest, as excessive water can reduce quality. Before heavy rains, extra care should be taken to prevent flooding. For varieties prone to cracking, consider using mulching or grass covering to maintain consistent soil moisture levels, which helps avoid stress on the plants and improves fruit integrity.
By following these practices, growers can ensure that their grapes reach optimal maturity, quality, and marketability. These steps not only support the health of the vines but also enhance the final product's value and appeal.